KR950007430A - Adaptive Ghost Removal Device and Method - Google Patents
Adaptive Ghost Removal Device and Method Download PDFInfo
- Publication number
- KR950007430A KR950007430A KR1019930017201A KR930017201A KR950007430A KR 950007430 A KR950007430 A KR 950007430A KR 1019930017201 A KR1019930017201 A KR 1019930017201A KR 930017201 A KR930017201 A KR 930017201A KR 950007430 A KR950007430 A KR 950007430A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- filtering
- ghost
- center tap
- shock response
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title claims abstract 14
- 238000012512 characterization method Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract 19
- 230000035939 shock Effects 0.000 claims abstract 7
- 230000008030 elimination Effects 0.000 claims abstract 4
- 238000003379 elimination reaction Methods 0.000 claims abstract 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
Abstract
본 적응적인 고스트제거장치 및 방법은 수신되는 신호에 실려 있는 고스트중 선고스트의 크기 및 위치와 파형등화의 필요성의 정도에 따라 FIR필터의 센터탭의 위치를 적응적으로 조절하여 고스트를 제거하기 위한 것이다. 이를 위하여 인가되는 신호에 대하여 선형 위상필터링을 하여 수신되는 신호에 대하여 선고스트 제거 및 파형등화를 하는 유한충격응답필터링시 센터탭의 위치를 채널 특성화처리 결과신호에 의하여 자동조절되도록 제어하도록 구성된다.This adaptive ghost elimination device and method is adapted to remove ghosts by adaptively adjusting the position of the center tap of the FIR filter according to the magnitude and position of the ghosts in the received signal and the degree of necessity of waveform equalization. will be. To this end, the position of the center tap is controlled to be automatically adjusted by the channel characterization result signal during the finite shock response filtering that performs linear phase filtering on the applied signal and performs line ghost removal and waveform equalization on the received signal.
따라서 유한충격응답필터링에 의한 고스트제거를 좀더 효율적으로 수행할 수 있다.Therefore, ghost elimination by finite impact response filtering can be performed more efficiently.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명에 따른 적응적인 고스트제거장치도이다,1 is an adaptive ghost removal apparatus according to the present invention,
제2A,B,C도는 채널특성화 결과에 따른 FIR(Finite Impulse Response) 필터의 센터탭(Center Tap)의 위치를 나타낸 것이다.2A, B and C show the positions of the center taps of the finite impulse response (FIR) filter according to the channel characterization result.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930017201A KR960016564B1 (en) | 1993-08-31 | 1993-08-31 | Adaptive ghost cancelling apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930017201A KR960016564B1 (en) | 1993-08-31 | 1993-08-31 | Adaptive ghost cancelling apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950007430A true KR950007430A (en) | 1995-03-21 |
KR960016564B1 KR960016564B1 (en) | 1996-12-14 |
Family
ID=19362460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930017201A Expired - Lifetime KR960016564B1 (en) | 1993-08-31 | 1993-08-31 | Adaptive ghost cancelling apparatus |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR960016564B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100781250B1 (en) * | 2001-02-09 | 2007-12-03 | 엘지전자 주식회사 | Channel equalizer |
-
1993
- 1993-08-31 KR KR1019930017201A patent/KR960016564B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100781250B1 (en) * | 2001-02-09 | 2007-12-03 | 엘지전자 주식회사 | Channel equalizer |
Also Published As
Publication number | Publication date |
---|---|
KR960016564B1 (en) | 1996-12-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR0162340B1 (en) | Ghost Elimination Equalizer for Digital Communications Systems | |
JP2953132B2 (en) | Data receiver equalizer | |
EP0516216B1 (en) | Echo cancellation system | |
JP2695541B2 (en) | Television signal processing apparatus and method | |
KR920011258A (en) | Signal dispersion canceller | |
KR950016350A (en) | HDTV's Channel Equalizer | |
MX9504159A (en) | Process for fast blind equalization of an adaptive equalizer. | |
US5512959A (en) | Method for reducing echoes in television equalizer video signals and apparatus therefor | |
EP0663764A1 (en) | Equalization apparatus with a fast updating operation of the filter coefficients | |
CA2038653A1 (en) | Method for the determination of fir filter coefficients in equalizers | |
KR970017460A (en) | Time Domain Filters for Communication Channels | |
KR950007430A (en) | Adaptive Ghost Removal Device and Method | |
KR20020020960A (en) | Channel equalizer | |
GB1373062A (en) | Method and apparatus for equalizing electrical signals | |
KR950007429A (en) | Adaptive Ghost Eliminator | |
IE50794B1 (en) | Improvements in or relating to transversal equalisers | |
JP2943512B2 (en) | Adaptive receiver | |
USRE34176E (en) | Method and apparatus for improving the rise and fall time of a video signal | |
KR0129563B1 (en) | A ghost cancelling apparatus | |
KR0144839B1 (en) | A ghost cancelling apparatus | |
KR960016416A (en) | Image quality control method using ghost eliminator | |
KR100252339B1 (en) | The convergence constance conversion circuit in the least men square equalizer | |
DE3066881D1 (en) | Filter device with low phase distortion and circuit comprising such a device for treating colour television signals | |
KR0154833B1 (en) | Line equalizer with selection of critical area | |
KR930024447A (en) | Ghost Removal Device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19930831 |
|
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19930831 Comment text: Request for Examination of Application |
|
PG1501 | Laying open of application | ||
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 19960626 Patent event code: PE09021S01D |
|
G160 | Decision to publish patent application | ||
PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19961122 |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19970218 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19970324 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 19970324 End annual number: 3 Start annual number: 1 |
|
PR1001 | Payment of annual fee |
Payment date: 19991130 Start annual number: 4 End annual number: 4 |
|
PR1001 | Payment of annual fee |
Payment date: 20001128 Start annual number: 5 End annual number: 5 |
|
PR1001 | Payment of annual fee |
Payment date: 20011128 Start annual number: 6 End annual number: 6 |
|
PR1001 | Payment of annual fee |
Payment date: 20021203 Start annual number: 7 End annual number: 7 |
|
PR1001 | Payment of annual fee |
Payment date: 20031126 Start annual number: 8 End annual number: 8 |
|
PR1001 | Payment of annual fee |
Payment date: 20041126 Start annual number: 9 End annual number: 9 |
|
PR1001 | Payment of annual fee |
Payment date: 20051125 Start annual number: 10 End annual number: 10 |
|
PR1001 | Payment of annual fee |
Payment date: 20061004 Start annual number: 11 End annual number: 11 |
|
PR1001 | Payment of annual fee |
Payment date: 20071203 Start annual number: 12 End annual number: 12 |
|
PR1001 | Payment of annual fee |
Payment date: 20081201 Start annual number: 13 End annual number: 13 |
|
PR1001 | Payment of annual fee |
Payment date: 20091201 Start annual number: 14 End annual number: 14 |
|
PR1001 | Payment of annual fee |
Payment date: 20101201 Start annual number: 15 End annual number: 15 |
|
PR1001 | Payment of annual fee |
Payment date: 20111201 Start annual number: 16 End annual number: 16 |
|
FPAY | Annual fee payment |
Payment date: 20121203 Year of fee payment: 17 |
|
PR1001 | Payment of annual fee |
Payment date: 20121203 Start annual number: 17 End annual number: 17 |
|
EXPY | Expiration of term | ||
PC1801 | Expiration of term |